B_141104_TresPuntosTriangulo, C (gcc)

B_141104_TresPuntosTriangulo

//Title of this code

#include <stdio.h>
#include <math.h>

int main(void)
{
    double x1, x2, x3, y1, y2, y3;
    double m12, m13;
    double perimetro;
    
    printf("Coordenadas de los puntos ... \n");
    printf("x1: "); scanf(" %lf", &x1);
    printf("y1: "); scanf(" %lf", &y1);
    printf("x2: "); scanf(" %lf", &x2);
    printf("y2: "); scanf(" %lf", &y2);
    printf("x3: "); scanf(" %lf", &x3);
    printf("y3: "); scanf(" %lf", &y3);
    
    if((x1 == x2 && y1 == y2) ||
       (x1 == x3 && y1 == y3) ||
       (x2 == x3 && y2 == y3))
    {
        printf("PUNTOS REPETIDOS. No hay triangulo!\n\n\n");
    }
    else if(x1 == x2 && x1 == x3)
    {
        printf("PUNTOS VERTICALES. No hay triangulo!\n\n\n");
    }
    else if(x1 == x2 || x1 == x3 || x2 == x3)
    {
        perimetro = sqrt(pow(x2 - x1, 2) + pow(y2 - y1, 2)) +
                    sqrt(pow(x3 - x1, 2) + pow(y3 - y1, 2)) +
                    sqrt(pow(x3 - x2, 2) + pow(y3 - y2, 2));
        printf("Perimetro: %lf\n\n", perimetro);
    }
    else
    {
        m12 = (y2 - y1) / (x2 - x1);
        m13 = (y3 - y1) / (x3 - x1);
        if(m12 == m13 || m12 == -m13)
        {
            printf("PUNTOS EN LINEA. No hay triangulo!\n\n\n");
        }
        else
        {
        perimetro = sqrt(pow(x2 - x1, 2) + pow(y2 - y1, 2)) +
                    sqrt(pow(x3 - x1, 2) + pow(y3 - y1, 2)) +
                    sqrt(pow(x3 - x2, 2) + pow(y3 - y2, 2));
        printf("Perimetro: %lf\n\n", perimetro);
        }
    }
    
    return 0;
}


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